Photographic camera.



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987,866. www man, un.

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i exact. description of the saine. reference b'eing had to theaccompanying drawings, forming a part of this specification, and tothe-reference-numerals inarked thereon.

'lhe present invention relates to photography and more particularly tophotograp iic cameras, the improvements bcingdir rectcd to the camerafront or lens carriageI with the object. of roviding a simple, cheap andserviceable evice of this character which will ofl'er convenientadjustment of the lens in all necessary directions and support thelatter with firmness and stability.

'l`o these and other ends the invention consists in certain improvementsand combinations of parts all as will be hereinafter more fullydescribed, the novel features bein pointed out in the claims at the endof the specification.

In the drawings: Figure 1 is a side elevation of a camera in an extendedposition to show a similar view of a front or lens carringe constructedin accordance with and illustrating one embodiment of my invention; Fig.2 is an cnlnr'ed front elevation i of the carriage remover, the lens andits' mounting being omitted; Fig. 8 is a central vertical section takensubstantially on the 2' Fi .4 is a rear elevag D rahly formed toconstitute a friction collar line 3 3 of Fi tion thereof. the upper partof the lens board being broken away, and Fig. 5 is a detail transversesection through the lens carringe taken substantially on the ne 5 5 ofFig. 3 and showing thc4 mechanism for clamping the carriage to thetrack.

Similar reference numerals in t.he.scveral figures indicato the samearts.

Referring more particu arly to the drawings the camera in connectionwith which I have illustrated m invention in th present instance is ofthe olding t pe comprising a A, and a front in icated genera 1y l b v Ilconnected to the body by the bellows C and traveling on the drop frontbed l) which, when the front and bellows are rc tractcd to foldedposition within the bodv, closes the forward opening of the latter.

rlhe bed l) is fitted with a track l which in the present. instance isshown to coni irise simply a flat. iiietal pliile supporte( as shown indotted lines in Fig. 2 to render its lateral edges clearly accessiblefor the purposes hereinafter explained. The lens carriage 2 ispreferably formed of a plate havl ing upwardly turned forward and roar eflanges 3 and 4, respectively, and downwardly turned lateral flanges 5which bear upon the track plate 1 near its marginal et ges as shown in,Fig. 2 to form a slidingr engagement for the carriage with the track.rl'he pair of clamping levers (l are pivoted on opposite sides'of thecarriage by means of ears 7 through which are passed pivot pins 8extending from front .to rear of the carringe and supported in theflanges B and 't thereof. The upper arm t) of each lever forms a fingerportion for releasing the lower arm 10 when pressed inwardly or towardeach other, the arm 10 heiiig hooked as shown to engagethe lateral edgesof the track l and normally hold the carriage g rigidly fixed thereonunder the influence of f a helical coiled spring 11 normally coinpressedand bearing in opposite directions against the levers on the other sidesof their pivots 8, the said spring being held in position by having itsends arranged to surround centering lugs 12 on the respective leverarms. The rearward flange 4 of the carriage plate projects upwardly andis provided with an offset portion 13. a late 14 secured to the lowerportion of the flange constituting in effect a continuation thereofparallel with but spaced slightlv from the offset portion 13 and thesaid plate is provided with a threaded post 15 projecting forwardlythrough an o ening 16 in the portion 13. lu4 the region of) the bend bvineans of which the offset portion 13 is formed, the flung(` has atransverse slot or opening 17 and sliding vertically iii the opening isprovided a lens board supporting plate 18 having a slot. 1t) therein toadmit the post 15. Threaded on the latter is a nut or thuinh screw 2U.the base of which, 21, is preferably sepa- 21 hearing against theoffsetV portion lil of the flange and adapted, when tightened, to drawsaid ortion and the baekin plate 1-t together with the result that theens board supporting plate 18 is firmly clam ed or gripped between themat any desire( position of adjustment.

The up r end of the sup 18 extendgeforwnrdly and lelearly .shown iiiFig. Il, to forni two relarting member ownwardly, as

'tively angular fares .Z2 and l` thel former v{constituting a transverseway and the latter Ia depending flange having a forwardly or i outwardlyextending threaded iost .24 therelon. while an upwardly extent ing platel5 ifast to the back of the support 1H fornisa flange adjacent the way.22 and is provided lwith a slot .Ztl parallel with the hitter.

l 'lhe lower end 2T of the lens board 27 is shaped to eoiiforni to theflanges 25 and Jil and lo the wav 22 upon ,which it is ada ited to slidelaterally of the carriage and o the support hein" terminated in a flange29 provided with a slot 28 to receive the post.

a shoulder 30 adjacent to the Slot 2G and cohere noted t `.!t and Willia llcutlett plii Ur projection zu ti'aveliiig in the Slot .ti of the flan e 'the latter is also preferably provid with operating with asimilar shoulder 31 on the lens hoard to prevent movement in an upwarddirection away from the support. A threaded uut or thumb screw 32 on thepost llt locks the lens board to the support in :in v desired positionof lateral adjustment. The lens mount 33 is secured within the openingB4 of the lens hoard in any usual or preferred manner.

' o brace the rearward flange 4 of the lens carriage and the otherclamping parts for the lens hoard 18, and also to form a housing foratleast a portion of the track clamp- 1 ing devices, I prefer to providean inclined plate tl fastened to the upper end of thc offset. portion 13at 3G and to the forward flange Il at 3T, an opening 38 being providedtherein to accommodate the post 21 and the threaded member Q0.

It will he Seen that with a camera front constructed in accordance withmy inveiition anv necessary adjustment of the optical axis o the camera,either a shortening toward or from or a lateral deflection parallel withthe sensitized plate or film, can be readily obtained, the carriagebeing movable forward and backward on the track 1 by pinching togetherthe operating portions t) of the clamping members G, and it will be iatin order to prevent such an extended releasing movement. of the levers:is would disengage the track engaging portions 10 entirely, allowingthe carriage to fall awayl from the bed, I provide extensions or stops35' on the pivoting cars 7 of the levers which engage upon the up erside of the carriage plate' 2, as shown in Pig. ti, and halt themovement of the clamping members as soon as definitely released fromclamping engagement.

lly loosening the nut 32 the leas board QT* can be moved laterally onthe way 22 of its support 18 to transfer the o tical axis to right orleft while the line o the same i' may be elevated or depressed by thendjust- 'ment of the support 18 `"ertically on the car ringe. 'lhcdevice of my invention itI is also suggested, may be conveniently formedof stam ed sheet metal parts, greatly lessenin 1 t ie cost ofmanufacture.

I claim as my invention.V

l. In a camera, the combination with a track, of a carriage. movablethereon having nipturncd flanges at its front and rear edges, c ainpiuglevers engaging the track in opposition to each other and each providedwith cara pivoted between the. flanges, means iioriiiall levers ingripping engagement with the track and an extension on an ear of eachlover adapted to engage `the carriage for limiting its releasingmovement away from the track.

2. In a camera, the combination with a lens board, of a supporttherefor, one of Said members comprising relatively angulaily arrangedouter faces, and the other being arranged to have a sliding bearing onone such face and being rovided with a slotted flange extendingcoincident with the other, u post. on the latter face projecting throughthe slot. in the flange and a nnt threaded on the post and adapted toengage the flange.

3. ln a camera, the combination with a support comprising a portionforming :i way and flanges at either side of said wa)v extending inopposite directions therefrom, one flange being provided with a slotparallel with'tlie way and the other willi n projecting post, of a lensboard of a shape conA P forming to the flanged configuration of thesupport and arranged to slide on the wa)v being provided witli a headedpin operatingr in the slotted flange of the sup iort and liaving aslotted flange to receive t te post of the other flange of the supportand a threaded nut on said post adapted to engage tht` slotted flange ofthe lens board.

4. In a camera, the combination with a support comprising a portionforming :i

. way and flanges at either side of said way extending in oppositedirections therefrom. one flange being provided with a slot parallel.with the way and with a shoulder ildjacent to the slot and thc otherwith a projecting post, of a lens board of a shape con forming to theflanged configuration of the support and arranged to slide on tlie wa)lbeing provided with` a headed pin operatinl.' in the slotted flange ofthe support and with a shoulder abutting the shoulder on the latter in adirection transversely of the slot` said lens board having a slottedflange to receive the goet of the other flange of thel support. an athreaded nut on said post adapted to engage the slotted -flange of thellens board.

. In n camera, the combination with a tendiug to hold theclampingjeeting through an opening in the other, of n lens hoardsupport. inovahle vertically be- .twecn the plate and the, offsetportion and having a slot therein to receive the post and a nut threadedon the latter to grip the. lens board support between the offsetpoi-tion and the. plate when tightened against one ot the latter.

wat@ 5 7. In a camera, the combination with n track and a lens carriagemovable thereon havin a vertically extending flange at one side tereofprovided with a bend forming an offset ortion and with an opening in theregion ofthe bend and a plate forming a i eontinuaton'of the flangeparallel with the i offset portion thereof, one of said parallel partsbeing provided with a post projecting i through an opening in the other,of a lens hoard support movable vertically between the plate and theotiset portion and having l a slot. therein to receive the )0st, a. nutthreaded on the latter to grip the lens board Support between theoffset'portion und the plate when tightened against one of the I latterclam ing mechanisms on the carriage t engaging tie track and a housingplate' for parts of the latter connected with one of the aforesaidgripping members and with the op- 1 posite side o the carriage.

CHARLES E. HUTCHINGS.

Witnesses:

VALTHR B. PAYNE, RUSSELL B. GRIFFITH. i

